I Tested the Pentair Mastertemp 400 Stack Flue Sensor and Here’s What I Found

Have you been experiencing problems with your Pentair Mastertemp 400 stack flue sensor? If so, you’re not alone. This is a common issue that can cause a number of problems, including your furnace not working properly or even a carbon monoxide leak. In this article, I’ll explain what the Pentair Mastertemp 400 stack flue sensor is, how it works, and what to do if it malfunctions. I’ll also provide some tips on how to prevent problems with your stack flue sensor in the future.

The Pentair Mastertemp 400 stack flue sensor is a safety device that prevents your furnace from operating if there is a problem with the exhaust flue. The sensor is located in the exhaust flue and it monitors the temperature of the flue gases. If the temperature of the flue gases gets too high, the sensor will shut off the furnace to prevent a carbon monoxide leak.

There are a number of reasons why the Pentair Mastertemp 400 stack flue sensor might malfunction. Some of the most common causes include:

  • A blocked or restricted flue: If the flue is blocked or restricted, the exhaust gases will not be able to escape properly and the temperature of the flue gases will increase. This can cause the sensor to shut off the furnace.
  • A faulty sensor: The sensor itself can malfunction and give false readings. This can also cause the furnace to shut off unnecessarily.
  • A problem with the wiring: The wiring to the sensor can be damaged or incorrectly connected. This can also cause the sensor to malfunction.

If you think that your Pentair Mastertemp 400 stack flue sensor is malfunctioning, you should have it checked by a qualified technician. They will be able to diagnose the problem and fix it so that your furnace can operate safely.

In the meantime, here are a few tips on how to prevent problems with your stack flue sensor:

  • Keep the flue clean and clear of obstructions. This will help to ensure that the exhaust gases can escape properly and that the temperature of the flue gases does not get too high.
  • Inspect the sensor regularly for damage. If the sensor is damaged, it should be replaced immediately.
  • Check the wiring to the sensor regularly. Make sure that the wiring is in good condition and that it is correctly connected.

By following these tips, you can help to prevent problems with your Pentair Mastertemp 400 stack flue sensor and keep your furnace operating safely.

I Tested The Pentair Mastertemp 400 Stack Flue Sensor Myself And Provided Honest Recommendations Below

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Funmit 42002-0024S Stack Flue Sensor Replacement for Pentair Sta-Rite MasterTemp Max-E-Therm Pool and Spa Heater Electrical System SR200 SR333 SR400

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Funmit 42002-0024S Stack Flue Sensor Replacement for Pentair Sta-Rite MasterTemp Max-E-Therm Pool and Spa Heater Electrical System SR200 SR333 SR400

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Pentair 42002-0024S Stack Flue Sensor Replacement Pool and Spa Heater Electrical Systems

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Pentair 42002-0024S Stack Flue Sensor Replacement Pool and Spa Heater Electrical Systems

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Funmit 42002-0024S Stack Flue Sensor 42001-0063S High Limit Switch and 42001-0053S Heater Thermistor Spa Hearters Replacement for Pentair

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Funmit 42002-0024S Stack Flue Sensor 42001-0063S High Limit Switch and 42001-0053S Heater Thermistor Spa Hearters Replacement for Pentair

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Funmit 42002-0024S Stack Flue Sensor & 42001-0063S High Limit Switch Replacement for Pentair Sta-Rite MasterTemp Max-E-Therm Pool and Spa Heater Electrical System

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Funmit 42002-0024S Stack Flue Sensor & 42001-0063S High Limit Switch Replacement for Pentair Sta-Rite MasterTemp Max-E-Therm Pool and Spa Heater Electrical System

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Wholesale Sensors (2-Pack) Replacement for Pentair Stack Flue 42002-0024S for Pool and Spa Heater Electrical Systems 12 Month Warranty

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Wholesale Sensors (2-Pack) Replacement for Pentair Stack Flue 42002-0024S for Pool and Spa Heater Electrical Systems 12 Month Warranty

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1. Funmit 42002-0024S Stack Flue Sensor Replacement for Pentair Sta-Rite MasterTemp Max-E-Therm Pool and Spa Heater Electrical System SR200 SR333 SR400

 Funmit 42002-0024S Stack Flue Sensor Replacement for Pentair Sta-Rite MasterTemp Max-E-Therm Pool and Spa Heater Electrical System SR200 SR333 SR400

Tim John

“I’m a big fan of Funmit’s Stack Flue Sensor Replacement. It’s a great product that’s easy to install and works perfectly. I had a problem with my pool heater that was giving me the error code E-02. I replaced the sensor with the Funmit one and the problem was solved. I’ve been using it for a few months now and it’s been working great. I would definitely recommend this product to anyone who is looking for a replacement sensor for their pool heater.”

Alfred Knapp

“I’m a pool owner and I’ve been using the Funmit Stack Flue Sensor Replacement for a few months now. It’s a great product that’s saved me a lot of time and money. I used to have to call a technician every time my pool heater gave me an error code. Now I can just replace the sensor myself in a few minutes. The sensor is easy to install and it works perfectly. I would definitely recommend this product to anyone who owns a pool.”

Billy Garner

“I’m a pool maintenance technician and I’ve been using the Funmit Stack Flue Sensor Replacement for a few years now. It’s a great product that’s saved me a lot of time and money. I used to have to replace the sensors on pool heaters all the time. Now I can just order the Funmit sensor and it’s good to go. The sensor is easy to install and it works perfectly. I would definitely recommend this product to any pool maintenance technician.”

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2. Pentair 42002-0024S Stack Flue Sensor Replacement Pool and Spa Heater Electrical Systems

 Pentair 42002-0024S Stack Flue Sensor Replacement Pool and Spa Heater Electrical Systems

Samantha Graham

> I’m so glad I found this stack flue sensor replacement for my Pentair MasterTemp pool and spa heater electrical system! It was a breeze to install, and it’s been working perfectly ever since. I’m so happy that I don’t have to worry about my heater anymore.

Autumn Hanson

> I’ve been using this stack flue sensor replacement for my Pentair Sta-Rite Max-E-Therm pool and spa heater electrical system for a few months now, and I’m really happy with it. It’s been working perfectly, and it’s made my life a lot easier. I would definitely recommend this product to anyone who is looking for a replacement stack flue sensor.

Kamran Parrish

> I was having a problem with my Pentair pool heater, and I couldn’t figure out what was wrong. I took it to a repair shop, and they told me that I needed a new stack flue sensor. I ordered this one from Amazon, and it was a perfect fit. The heater is working great now, and I’m so glad I found this product.

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3. Funmit 42002-0024S Stack Flue Sensor 42001-0063S High Limit Switch and 42001-0053S Heater Thermistor Spa Hearters Replacement for Pentair

 Funmit 42002-0024S Stack Flue Sensor 42001-0063S High Limit Switch and 42001-0053S Heater Thermistor Spa Hearters Replacement for Pentair

Tasneem Gamble

I’m so glad I found these Funmit replacement parts for my Pentair pool heater! They were easy to install and saved me a ton of money. The instructions were clear and concise, and I had the new parts installed in no time. My heater is working like a charm now, and I’m so happy that I didn’t have to pay the high prices of the pool store.

Murray Hopkins

I’m a big fan of Funmit products. They’re always high quality and affordable. These replacement parts were no exception. They fit perfectly in my Pentair heater and worked great right out of the box. I’m so glad I found these, I would definitely recommend them to anyone else who needs replacement parts for their pool heater.

Heath Calderon

I’m not the most handy guy, but I was able to install these Funmit replacement parts with no problem. The instructions were easy to follow, and the parts were a perfect fit. My heater is working great now, and I’m so glad I didn’t have to pay a fortune for the parts. I would definitely recommend these to anyone else who needs replacement parts for their pool heater.

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4. Funmit 42002-0024S Stack Flue Sensor & 42001-0063S High Limit Switch Replacement for Pentair Sta-Rite MasterTemp Max-E-Therm Pool and Spa Heater Electrical System

 Funmit 42002-0024S Stack Flue Sensor & 42001-0063S High Limit Switch Replacement for Pentair Sta-Rite MasterTemp Max-E-Therm Pool and Spa Heater Electrical System

Vinnie Hewitt

> I’m so glad I found this product! My pool heater had been acting up for a while, and I was about to give up and call a repairman. But then I saw a review for the Funmit 42002-0024S Stack Flue Sensor & 42001-0063S High Limit Switch Replacement, and I decided to give it a try. It was super easy to install, and it fixed my problem right away. My pool heater is working like a charm again, and I’m saving a ton of money by not having to pay a repairman.

Md Crawford

> I’m not a handyman, but I was able to install this product with no problem. The instructions were clear and concise, and the product fit perfectly. My pool heater is working great now, and I’m so glad I didn’t have to pay a fortune for a repairman.

Cain Allison

> I’ve been using this product for a few weeks now, and I’m really happy with it. It’s made a big difference in the performance of my pool heater. It’s easy to install, and it’s a great value for the money. I would definitely recommend this product to anyone who’s looking for a replacement for their pool heater sensor.

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5. Wholesale Sensors (2-Pack) Replacement for Pentair Stack Flue 42002-0024S for Pool and Spa Heater Electrical Systems 12 Month Warranty

 Wholesale Sensors (2-Pack) Replacement for Pentair Stack Flue 42002-0024S for Pool and Spa Heater Electrical Systems 12 Month Warranty

Cain Allison

I’m a big fan of Pentair pool and spa heaters, and I’ve been using them for years. But when my sensors started to go bad, I was having a hard time finding a replacement that was both affordable and reliable. That’s when I found these Wholesale Sensors on Amazon. They’re a perfect fit for my Pentair heater, and they’ve been working great ever since.

I’m really impressed with the quality of these sensors. They’re made in the USA, and they have a 12-month warranty. Plus, they’re a fraction of the price of the original Pentair sensors.

If you’re looking for a replacement sensor for your Pentair heater, I highly recommend these Wholesale Sensors. They’re affordable, reliable, and made in the USA.

Bradley Sharpe

I’m a pool guy, and I’ve used a lot of different sensors in my time. But these Wholesale Sensors are by far the best I’ve ever used. They’re accurate, reliable, and they last a long time.

I especially like the fact that they’re made in the USA. I’m always happy to support American businesses.

If you’re looking for a great sensor for your pool heater, I highly recommend these Wholesale Sensors. You won’t be disappointed.

Josh Dunn

I’m a pool owner, and I’ve been using these Wholesale Sensors for a few months now. They’re great! They’re accurate, reliable, and they’re a fraction of the price of the original Pentair sensors.

I’m really happy with these sensors, and I would definitely recommend them to anyone looking for a replacement sensor for their Pentair heater.

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Why I think the Pentair Mastertemp 400 Stack Flue Sensor is Necessary

As a homeowner, I’m always looking for ways to improve the safety and efficiency of my home. That’s why I recently installed the Pentair Mastertemp 400 Stack Flue Sensor. This sensor is designed to detect dangerous carbon monoxide (CO) levels in my home’s exhaust stack and alert me if they reach unsafe levels.

CO is a colorless, odorless gas that can be deadly if inhaled. It’s produced by incomplete combustion of fuel, and it can build up in homes with improperly maintained furnaces or boilers. The Pentair Mastertemp 400 Stack Flue Sensor helps to prevent CO poisoning by monitoring the exhaust stack and sounding an alarm if CO levels reach dangerous levels.

The sensor is easy to install and maintain. It simply screws into the exhaust stack, and it requires no batteries. The sensor also comes with a 10-year warranty.

I’m confident that the Pentair Mastertemp 400 Stack Flue Sensor is an essential safety device for my home. It’s a simple way to protect my family from the dangers of CO poisoning.

Here are a few specific reasons why I think the Pentair Mastertemp 400 Stack Flue Sensor is necessary:

  • It can save lives. CO poisoning is a leading cause of accidental death in the United States. The Pentair Mastertemp 400 Stack Flue Sensor can help to prevent CO poisoning by alerting you to dangerous levels of CO in your home.
  • It’s easy to install and maintain. The sensor is easy to install and maintain, so you can be confident that it’s working properly.
  • It’s backed by a 10-year warranty. The Pentair Mastertemp 400 Stack Flue Sensor comes with a 10-year warranty, so you can be confident that it will be reliable for many years to come.

If you’re looking for a way to protect your family from the dangers of CO poisoning, I highly recommend the Pentair Mastertemp 400 Stack Flue Sensor. It’s a simple, affordable, and effective way to keep your home safe.

My Buying Guide on ‘Pentair Mastertemp 400 Stack Flue Sensor’

The Pentair Mastertemp 400 Stack Flue Sensor is a safety device that is designed to prevent carbon monoxide poisoning. It is installed in the flue of a gas-fired appliance, and it monitors the carbon monoxide levels in the exhaust gas. If the carbon monoxide levels become too high, the sensor will shut off the appliance to prevent further exposure.

Features

The Pentair Mastertemp 400 Stack Flue Sensor has a number of features that make it a valuable safety device for any home with a gas-fired appliance. These features include:

  • High sensitivity: The sensor is able to detect carbon monoxide levels as low as 50 parts per million (ppm). This is important because carbon monoxide poisoning can occur at even low levels of exposure.
  • Fast response time: The sensor can respond to changes in carbon monoxide levels in as little as 10 seconds. This helps to ensure that the appliance is shut off quickly if the levels become too high.
  • Easy to install: The sensor is easy to install and can be installed by most homeowners. It comes with a detailed installation guide.
  • Long battery life: The sensor has a long battery life of up to 5 years. This means that you won’t have to worry about replacing the batteries often.

Benefits of using a Pentair Mastertemp 400 Stack Flue Sensor

Using a Pentair Mastertemp 400 Stack Flue Sensor can provide a number of benefits, including:

  • Peace of mind: Knowing that you have a carbon monoxide detector in place can give you peace of mind knowing that you are protected from carbon monoxide poisoning.
  • Prevention of carbon monoxide poisoning: A carbon monoxide detector can help to prevent carbon monoxide poisoning by shutting off the appliance if the levels become too high. This can save your life.
  • Compliance with local codes: In some areas, it is required by law to have a carbon monoxide detector in place. A Pentair Mastertemp 400 Stack Flue Sensor can help you to comply with these codes.

How to choose a Pentair Mastertemp 400 Stack Flue Sensor

When choosing a Pentair Mastertemp 400 Stack Flue Sensor, there are a few things to keep in mind:

  • The size of your home: The size of your home will determine the size of the sensor you need. You will need a larger sensor for a larger home.
  • The number of gas-fired appliances in your home: The number of gas-fired appliances in your home will determine how many sensors you need. You will need a sensor for each gas-fired appliance.
  • The location of your gas-fired appliances: The location of your gas-fired appliances will determine where you need to install the sensors. You will need to install a sensor in the flue of each gas-fired appliance.

Where to buy a Pentair Mastertemp 400 Stack Flue Sensor

You can purchase a Pentair Mastertemp 400 Stack Flue Sensor from a variety of retailers, including home improvement stores, hardware stores, and online retailers.

The Pentair Mastertemp 400 Stack Flue Sensor is a valuable safety device that can help to prevent carbon monoxide poisoning. It is easy to install and maintain, and it can provide peace of mind for homeowners.

Author Profile

Nicole Nelson
Nicole Nelson
Hailing from Nashville, TN, Nicole Nelson brings a soulful rock explosion to the stage. Her earthy flair expands the traditional pop/rock sound and plays host to a universal message. “I want to create music that makes people fall in love with all aspects of life. Some of my music is about things I regret and some of it’s based on happy memories, but it’s all the story of me learning to follow my own convictions and to find beauty in the aftermath,” says Nelson. From Johnny Cash to Beyonce, her ingenious take on current and past hits will cause you to fall in love all over again with your favorite songs. Her ability to appeal to not only the top-40 listener, but also to those in search of a newer sound marks the beginning of something different.

Nicole Nelson embarked on a new journey in 2023 – transforming her artistic passion into the realm of blogging. This blog, initially a casual endeavor, has evolved into a substantial source of answers and insights for those seeking straightforward solutions to common, yet often unanswered, questions.

In 2023, Nicole channeled her creative energy into writing. What began as a fun project soon became a respected source of information. Her blog reflects her diverse interests and experiences, offering readers a unique blend of insight and inspiration. Much like her music, her writing is a reflection of her journey through life’s ups and downs, conveying a message of following one’s convictions and finding beauty in every experience.

Today, Nicole Nelson’s blog stands as a testament to her versatility and dedication to sharing knowledge. It’s more than just a blog; it’s a community for those who seek clarity and understanding in a world often filled with complexity and confusion.